Added folder for german translation

de/code/src/apps/ch.5.4/main.go

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+// Example code for Chapter 5.4 from "Build Web Application with Golang"
+// Purpose: Show how to perform CRUD operations using a postgres driver
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	_ "github.com/bmizerany/pq"
+	"time"
+)
+
+const (
+	DB_USER     = "user"
+	DB_PASSWORD = ""
+	DB_NAME     = "test"
+)
+
+func main() {
+	dbinfo := fmt.Sprintf("user=%s password=%s dbname=%s sslmode=disable",
+		DB_USER, DB_PASSWORD, DB_NAME)
+	db, err := sql.Open("postgres", dbinfo)
+	checkErr(err)
+	defer db.Close()
+
+	fmt.Println("# Inserting values")
+
+	var lastInsertId int
+	err = db.QueryRow("INSERT INTO userinfo(username,departname,created) VALUES($1,$2,$3) returning uid;",
+		"astaxie", "software developement", "2012-12-09").Scan(&lastInsertId)
+	checkErr(err)
+	fmt.Println("id of last inserted row =", lastInsertId)
+
+	fmt.Println("# Updating")
+	stmt, err := db.Prepare("update userinfo set username=$1 where uid=$2")
+	checkErr(err)
+
+	res, err := stmt.Exec("astaxieupdate", lastInsertId)
+	checkErr(err)
+
+	affect, err := res.RowsAffected()
+	checkErr(err)
+
+	fmt.Println(affect, "row(s) changed")
+
+	fmt.Println("# Querying")
+	rows, err := db.Query("SELECT * FROM userinfo")
+	checkErr(err)
+
+	for rows.Next() {
+		var uid int
+		var username string
+		var department string
+		var created time.Time
+		err = rows.Scan(&uid, &username, &department, &created)
+		checkErr(err)
+		fmt.Println("uid | username | department | created ")
+		fmt.Printf("%3v | %8v | %6v | %6v\n", uid, username, department, created)
+	}
+
+	fmt.Println("# Deleting")
+	stmt, err = db.Prepare("delete from userinfo where uid=$1")
+	checkErr(err)
+
+	res, err = stmt.Exec(lastInsertId)
+	checkErr(err)
+
+	affect, err = res.RowsAffected()
+	checkErr(err)
+
+	fmt.Println(affect, "row(s) changed")
+}
+
+func checkErr(err error) {
+	if err != nil {
+		panic(err)
+	}
+}

de/code/src/apps/ch.5.4/readme.md

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+##Setup for ch.5.4
+
+- Step 1) Install and run Postgres
+- Step 2) Create a user and database according to the constants in `main.go`
+	
+		DB_USER     = "user"
+		DB_PASSWORD = ""
+		DB_NAME     = "test"
+
+- Step 3) Create table `userinfo` located at `schema.sql`
+- Step 4) Run `go get` to download and install the remote packages.
+- Step 5) Execute the program with `go run main.go`

de/code/src/apps/ch.5.4/schema.sql

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+CREATE TABLE userinfo
+(
+	    uid serial NOT NULL,
+	    username character varying(100) NOT NULL,
+	    departname character varying(500) NOT NULL,
+	    Created date,
+	    CONSTRAINT userinfo_pkey PRIMARY KEY (uid)
+)
+WITH (OIDS=FALSE);